Lost instruction booklet

If efficiency is down make sure that the the coils are clean and free of any and all debris, dirt, etc. Locate unit where it can "breathe" properly. If no improvement you may have lost some refrigerant over the years. If access to ammeter check for current draw. If it is lower that specs it is because the unit is not working as hard due to less refrigerant in system.

If it is reasonably clean inside and the room temperature is in the 70's you probably have lost some refrigerant gas or the compressor has lost some capacity. Look in side to be sure the coil is not frozen and the compressor is actually operating.

Good Luck,
Gil

On a dehumidifer, you set the relative humidity, not temperature. Normally the humidity should be set within 40 to 60 percent humidity.

Click on this link for a copy of the manual for your machine. www.sylvane.com/images/.../delonghi-dd50p-dehumidifier-user-manual.pdf

Hope this helps you.

Simply turn it off and let it set! this will allow the coils to thaw.

if the temp of the area it is in is not too cold and the coils and filters are clean, then it may have deleloped a leak and lost some of the refrigerant charge. i would clean coils and filters first.

Hi,
There can be many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

Hi,
Here is a tip that I wrote to help people with just that dehumidifier problem..

Dehumidifier Problem It shows Bucket Full
http://www.fixya.com/support/r4688381-dehumidifier_problem_shows_bucket_full

heatman101

Are the coils clean? If it has a filter is it clean? If yes to both, it has lost (leaked) refrigerant and it's time to buy a new dehumidifier. If the leak can be found it probably wouldn't be repairable and would cost more to fix than it's worth.

It may have lost its charge of refrigerant. Check the warranty for sealed system, or if it is just the compressor which is covered. There are coils above the bucket area. Check for possible frost on only part of the coil. It is a sign that it has a leak at some point and has lost its refrigerant charge. If it lost all the gas there will be no frost nor condensation on the coils. Four years old and $75 bucks, its your choice.

Depending on the ambient temp/humidity and how its set it could definitely run continually. If you don't hear it it's possible the blade is broken or just stuck.

Call 800-243-0000 or go to www.aic.lgservice.com